Machine for forming corrugated curtain-rod heads.



U. P. HENRY & F. H. SHAW.

MACHINE FOR FORMING CORRUGATED CURTAIN ROD HEADS.

APPLICATION FILED OCT. 23, 1911.

1 ,Q34,796 Patented Aug. 6, 1912.

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ATTURNEX C. P. HENRY & F. H. SHAW. MAGHINBVPOB FORMING CORRUGATED CURTAIN BOD HEADS. APPLIGATION FILED OUT. 23, 1911.

1 ,O34,'796. Patented Aug. 6, 1912.

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CHARLES P. HENRY-AND FRANK- H. snaw, or PROVIDENCE, maroon ISLAND, ASSIGN- ons T 0. P. nnmY-novnmxcomramr, a CORPORATION or RHODE ISLAND.

amounts FOR IEOR1lIING connosa'rnn CURTAIN-ROD HEADS.

Patented Aug. 6, 1912.

I Application filed October 23, 1911. Serial 170. 656,684.

1 To all whom it may concern:

- vice inte ded' to form the heads of curtain rods. These heads have corrugated periphdries and are in final form spherical or otherwise curved.

The essential objects of our invention are t'o-provide a mechanism which shall close down the stock into heads: without fiatten mg the corrugations and without causing an. over-lapping of the corrugations or ribs .at 2o their points of convergence; to automatically feed the stock to the formeryto, insure against-excessive wear -u'pon any part of-th formingtm l or anvil; to increase the speed of the formirn decrease the cost of maiihfac't-ure.

" To the above eigds ehsentially'our invoutior. consists in su h'parts and in such con binations of parts as fallwvithm the scope of the appended claims. I A

In the accompanying drawings which forma part of this specification, Figure 1 is a front elevation of the head of a equipped wit-h our novel mechanism; Qaud 3, front and plan elevations res cti'velyjof our mechanism; Figs. .4, 5, an e,

sections'respectiv'ely on line a:.,:n of Fig.

- Like referenc parts, throughou the views.

7, a perspective view-of the blank to be operated upon. Fig-85a plan of our machine showing the blank at the time of its .inscrtion, Fig.- 9', a like view of the-same sliowin the blank wound upon the forming too Figs. 10 and 11-, side elevations, with parts partially broken away, of the operative parts )efore and durmgthe forming actlon respectively, Fig. 12, a'side elevation off'the stock after the forming operation, and Fig.

13, an 'end view of the same.

-charactels indicate like Our forming mechanism is in theresent instance shown mounted in a press w ich is II ISTD.

typical of any kind of qlie operating mechaoperation and to press igs:

1 is the base, 2 the head or yoke, and 3 the plunger or screw of a press;

Our forming mechanism comprises a suitable frame, consisting in this instance, of a top plate 6, bottom plate 7, and plates 8 intermediate the ends of the top and bottom plates andaffixed thereto by' screws 9 or otherwise. Openings 1'1 and 12 in the'plates (i and, 7 respectively are in alinement .with

eachtithcr. and in the opening .11 is an annular shoulder 13. Rotatable in the opening 12 is a shaft 15 integral with or fixed to an intermediate portion of which is a collar 16 rotatable in the opening- 11 and provided with a shoulder 17 resting upon the shoulder 13. The collar has an upwardly directed annular flange 18 upon its outer margin.

The upper facefof the collar abuts against the bottom of'au anvil 19 of cylindrical form thijaughout"the arca inclosed by the fian ie IS but having a rounded or hemi- ,sphe'ric'zd'. end portion extending above the fiang The outer extremity of the anvil is provided within recess .22, and the side and upper .end portion of the anvil is provided with a series of longitudinally disposed ribs 23 extending parallel with each other along the side of the anvil andconverging gradually along the rounded portion of the latter.

A collar 25 provided with a central orifice 26Iis.loose on the Sllttftlfi and slidably rests upon the plate 7. In the orifice 26 is a volute spring 27 surrounding the shaft 15 fixedat one end to a-pin .28 in the plate 7 and at its other end to a .pin 29 in the collar. In a threaded opening 31 in the side of .t-he'collar J 2;) is a screw-'33 engaglng the end of a strap- 34 coiled around-the collar and to whose end is attached a handle 35.

Pivoted to a pin 37 in the upper partof the collar 25 is a pawl 38 engaging aratchet wheel 39 fixed by a pin 40 to the shaft 15.

The pawl is pressed into engagement with the ratchet by a spring 41, having one end fixed to a pin 42 in the top face of the collar, and resting against astop pin 43 also in the collar.

It will be observed that by manually pull- -ing thehandle 35 and unwinding the' strap (34 against the resistance of the spring 27 the anvil 9 is through the pawl and ratchet wheel rotated to any desired extent.

' It will be observed that there is an annular space 45 between the anvil 19 and the I I in-Fig. 7, is an oblong-strip of thin metal provided with a continuous" transverse series of corrugations 49 corresponding in" dimen sions an upon the anvil 19. *Thereforewhen the for; ward end' of the blank has beem fed. into i -contact with the periphery of the anv'il, the handle 35. has begun tobe pulledtheribs on the'anvih'which register in the 'corruga-- tions of the 'blank, carry'the latter through the space 45' until the rear end of the blank I overlaps its front end, asshownin Fig. 13.

The described parts are now in'- the position shown in Fig. 10, so that when the coiiperating female or closing downdie is applied in -a vertical direction, either" manually or otherwise, the guiding and forming char'ac v ter of the ribs 23 upon the former 19 willlin sure-regular unlapped convergingcorrugationsrupon the resultant curtain rod head.-

- .In the present instance the-=member em ployed to close down the blank is a die 50- mounted in any convenient manner the plunger 3, and provided with a concavity 54 1n its'bottom and a central projection 55, the

v latter being adapted when the plunger de-.

' scends, as shown .in 'Fig. 11-, 'to enter the cavity 22 in the top of the anvil 19.

What we claim 1s,+ r j t .-1. In a device for formingv corrugated heads, vthe combination with the frame, of a shaft rotatably mounted in the frame, an'

40 anvil upon the shaft provided with a series of ribs, a'collar upon the shaft ,a'spring connecting the collar and the frame, and, a mem-- ber attached tofthe collar and adapted-to rotate the same,

heads, the combination with the vframe, of a:

j shaft rotatably mounted in the frame,-an-

anvil upon the shaft provided with a se rites of ribs, a'collar upon the'shaft, a spring connecting the collar and the frame, anda tlexible'm'ember fixed at one end to the collar and coiled around the same. 8. In a device for-forming corrugated heads,-the combination-with the frame, of a' shaft. rotatably mountedin the frame, an

anvil upon the shaft provided with a series, j

The

relative location with the ribs-23'.

- pressing against 1 the 2. In a device for forming of ribs, a collar upon the sh a sp'ring'con nectinglthe collar.. and the, e, a ratchet upont e shaffi zgahawl upon the collar'engagin the ratchet, "and a member engaging the co aradapted to-rotate the shaft. 1

' I 4. In a device for forming heads, the comhinationwith thejrame, of a shaft rotatably mounted in the frame, an

ahvil upon theshaft rovidedwith a series ofribs, a collar upon t e shaft, a spring connecting' the collar and the frame, a ratchet I upon the shaft, a pawl u'pon thecollar en gaging the ratchet, a spring upon the collar i awl, and a flexiblemember attached to t ecollar and coiled v 1 aroundthe'collar.

5, In'afdevice for formin heads, the combination'with t e frame, of a'nlanvil provided with'a series of longitudinally disposed convergin vribs rotatably. mounted in the frame, a col ar at the base-of. the" anvil, a flange uponthe collar surround "ing' the anvil and. interspaced therefrom and provided with a guide slot, and means for rotatingthe-anvil; 4 6, In a device for forming 'corrugated jhea ds ,'the combination with the frame, ofva shaft rotatably mounted, in the vframe, an 7 anvil u on the end of'the shaft coifipnising a cylin' rical body and a curved end portion, 'a' collarupon the shaft at the base of-the anvil, a flange upon the :collar surrounding the anvil and provided witha "de slot, 0. second collar upon the shaft, a exib le memher attached to the second collar and coiled- I around it .tovimpart rotary movement to the shaft, and sprin (means for rotating the 'shaft'in an opposite direction;

7. In 1 a device 4 for forming corrugated heads, the combination with't-he frame, of-a shaft -rotatably mounted in 'thefra'me, an anvil up'on'the-shaft provided with a series' of ribs, a "collar loose on the shaft, a ratchet wheel vfast on, the shaft, operative connec- 10o In testimony whereof we have aflixed our signaturestin presence of two witnesses.

' CHARLESP. HENRY.

. FRANK H. SHAW.

' Witnesses: I

- Hon'rlo EBmowa,

(LxnmirziaD. Knnurr.

corrugated- I 

